jay2912 jay2912
  • 21-12-2015
  • Mathematics
contestada

which of the following is a composite number 63 ,31, 13 ,61

Respuesta :

WorldCitizen WorldCitizen
  • 21-12-2015
A composite number is a number that is not prime, that is, it has factors.

Here, it's 63: it's divisible by 3:

63/3=21

and then by 3 again:

21/3=7

and only 7 is a prime.

so 63 is the answer
Answer Link

Otras preguntas

7. You found that 1.50 ml of a liquid has mass of 2.750g. What is the density of the unknown liquid?
What is the equivalent of 3/6
Samantha was scanning photos she was scanned 123 but still has 296 left to scan how many pictures did she star with define a variable and write an equation so
. Andrew Jackson was very popular when he was elected in 1828, but he made many controversial decisions during his presidency. Which of the following has Andrew
why did colonists do quillery
Why isn't hydrogen considered an alkali metal ?
The school track team earned $2 for each cap they sold and $5 for each sweatshirt they sold. The total profits were $317. If they sold 1 more of the caps than o
explain why x+8=12 and 12-x=8 have the same solution ?
why did colonists do quillery
What kind of government did followers of Ayatollah Khomeini want? A: one that preserved Greek culture B: one that followed Rumi's ideas C: one that preserved th